From 21bfadf5d67333d48ccde7a373438c545ec5536a Mon Sep 17 00:00:00 2001
From: Meritoo <github@meritoo.pl>
Date: Sun, 11 Aug 2019 12:56:08 +0200
Subject: [PATCH] Increase Mutation Score Indicator (MSI) by removing
 "src/Type/DatePeriod.php:120 [M] TrueValue" mutant

---
 tests/Type/DatePeriodTest.php | 47 +++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/tests/Type/DatePeriodTest.php b/tests/Type/DatePeriodTest.php
index 5f6f0c0..0069a3c 100644
--- a/tests/Type/DatePeriodTest.php
+++ b/tests/Type/DatePeriodTest.php
@@ -77,6 +77,18 @@ class DatePeriodTest extends BaseTypeTestCase
         self::assertEquals('', $period->getFormattedDate($format));
     }
 
+    /**
+     * @param DatePeriod $period   The date period to verify
+     * @param string     $format   Format used to format the date
+     * @param string     $expected Expected, formatted date
+     *
+     * @dataProvider provideDatePeriodAndDateFormatUsingStartDateOnly
+     */
+    public function testGetFormattedDateUsingStartDateOnly(DatePeriod $period, $format, $expected): void
+    {
+        self::assertEquals($expected, $period->getFormattedDate($format));
+    }
+
     /**
      * @param DatePeriod $period    The date period to verify
      * @param string     $format    Format used to format the date
@@ -144,6 +156,41 @@ class DatePeriodTest extends BaseTypeTestCase
         ];
     }
 
+    /**
+     * Provides period and format of date to verify using the start date
+     *
+     * @return Generator
+     */
+    public function provideDatePeriodAndDateFormatUsingStartDateOnly(): Generator
+    {
+        $startDate = new DateTime('2001-01-01');
+        $endDate = new DateTime('2002-02-02');
+
+        yield[
+            new DatePeriod($startDate, $endDate),
+            'Y',
+            '2001',
+        ];
+
+        yield[
+            new DatePeriod($startDate, $endDate),
+            'D',
+            'Mon',
+        ];
+
+        yield[
+            new DatePeriod($startDate, $endDate),
+            'Y-m-d',
+            '2001-01-01',
+        ];
+
+        yield[
+            new DatePeriod($startDate, $endDate),
+            'Y-m-d H:i',
+            '2001-01-01 00:00',
+        ];
+    }
+
     /**
      * Provides period and format of date to verify
      *